[Mgizzle]

Car is about 3550 full tank of gas no driver. I havent taken out the HVAC, radio and onstar module out yet. Plan on that here in next couple of weeks I hope. Still on stock battery too so after winter will goto something lighter.

However I still want to put second seat back in so I ll be happy if it stays at 3450-3500lbs.

I havent measured the deflectors effectiveness but in the SS the car comes stock with the deflector you installed but the kit I put in comes for it for use on track, hence big jump in cooling over stock. I didnt measure anything physically at track though. The track deflector picks air up from under car a bit and also gets a lot closer to rotor and duct just like what you drew with arrows. Gmpartsguy has the kit for $22 shipped now.

Now I just wish a set of 19" forgelines would drop in my lap lmao.... I need lighter wheels and tires hahaha.